Hi All, Parameter overriding does not appear to be working when I try to override the 'nullable' attribute of a Configuration parameter: <root> <parameter name="password" type="string" nullable="no" /> <constraint-set name="modify"> <validate name="password" nullable="yes"/> </constraint-set> </root> I've tested overriding the other attributes (min, max, max-len ...) and they work fine but the example above fails when the "modify" constraint-set if used to validate a null "password" parameter. I've verified this behaviour by adding extra debug into AbstractValidatorAction. >From what I can see, the construction of Configuration variables is not part of the Cocoon2 codebase but is in the Avalon framework package. I'll download the source for Avalon and see if I can find the bug but can somebody please SHOUT if I'm going on a wild goose chase? Thanks, Chris -- Chris Newland Software Research Engineer Emorphia Ltd Registered in England. 4133002 Mill House, Station Approach, Harlow Mill, Harlow, Essex, CM20 2EL, UK Email: [EMAIL PROTECTED] Tel: +44 (0)1279 450100 Fax: +44 (0)1279 450102 Check out FIPA-OS at http://fipa-os.sourceforge.net/ This message may contain information proprietary to Emorphia so any unauthorised disclosure, copying or distribution of its contents is strictly prohibited. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]